CN211776608U - Eccentric circle tool type lock core - Google Patents

Abstract

The utility model relates to an eccentric circle instrument type lock core adopts the universal architecture wedging to key and lock core in solving current like product, and the key rotates torsion requirement great, and stability and the relatively poor technical problem of waterproof nature and design. The lock cylinder of the tool type lock cylinder is arranged in a lock cylinder hole of the base through an O-shaped ring and a spring gasket, and a square head at one end, extending out of the base, of the lock cylinder is connected with a square hole of a steel bolt through a screw; the key is characterized in that an eccentric hole is formed in a key hole at the other end of the lock cylinder, a protruding eccentric shaft is arranged at one end of a key, an outer ring diameter larger than the diameter of the eccentric shaft is arranged on the outer diameter above the outer ring diameter, a limiting ring larger than the diameter of the outer ring is arranged on the outer diameter above the outer ring diameter, the outer ring diameter of the key is inserted into the key hole of the lock cylinder, the eccentric shaft of the key is inserted into the eccentric hole of the lock cylinder, and the limiting ring of the key abuts against the key hole outer diameter hole ring of the lock cylinder, so that the requirement on the rotating torque of the.

Description

Eccentric circle tool type lock core

Technical Field

The utility model relates to a lock core of cylinder lock is an eccentric circle instrument type lock core.

Background

At present, tool type cylindrical locks used in the industry generally consist of various lock cylinders such as triangular, square, polygonal and star-shaped lock cylinders, and the lock cylinders do not have certain theft resistance, and can be opened easily by one screwdriver and one pliers. For example, the application No. 201620858793.5 disclosed in chinese patent document, granted bulletin date 2017.01.18, and the utility model discloses a tool type lock, but the torque force required for such a tool type lock core is relatively large, and the lock core uses conventional blades and pin tumbler lock cores, and the structural design is too complicated, and the stability and the waterproof property of lock core are relatively poor.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide an eccentric circle tool type lock core to the field, so that the key and the lock core adopt the universal structure to be wedged in the existing similar products, the torque requirement of the key rotation is large, and the stability and the waterproof performance are poor. The purpose is realized by the following technical scheme.

A kind of eccentric round tool type lock core, the lock core of the tool type lock core is set up in lock core hole of the base through O-ring, spring spacer, stretch out of the square head of one end of lock core of the base and connect with square hole of the steel bolt through the screw, there are sealing gaskets and nuts in the external screw thread of the base; the key is structurally characterized in that an eccentric hole is formed in a key hole in the other end of the lock cylinder, a protruding eccentric shaft is arranged at one end of the key, an outer ring diameter larger than the diameter of the eccentric shaft is arranged on the outer diameter above the eccentric shaft, the outer ring diameter of the key is inserted into the key hole of the lock cylinder, and meanwhile, the eccentric shaft of the key is inserted into the eccentric hole of the lock cylinder. Therefore, the eccentric structures between the key and the lock cylinder are mutually wedged, the lock cylinder in the base is driven to rotate through the rotation of the key, and the requirement on the rotation torque force of the key in the structure is low.

The outer diameter of the upper portion of the outer ring diameter of the key is provided with a limiting ring larger than the outer ring diameter, the outer ring diameter of the key is inserted into a key hole of the lock cylinder, an eccentric shaft of the key is inserted into an eccentric hole of the lock cylinder, and meanwhile the limiting ring of the key abuts against the key hole outer diameter hole ring of the lock cylinder. The structure is convenient for further limiting when the key is inserted into the key hole in the lock cylinder.

The other end of the key is provided with a ring, one side of the key insertion end of the inner diameter of the key ring is provided with a rectangular sign protruding inwards, and a cylindrical shaft lever is arranged between the ring of the key and the key insertion end. The above is a specific embodiment of the key with eccentric shaft structure.

A sealing ring groove and a conical surface are arranged between the square head of the lock cylinder and the eccentric hole, an O-shaped ring is arranged in the sealing ring groove of the lock cylinder, and a spring gasket is arranged on the conical surface on one side of the square head. Above-mentioned structure has improved the waterproof nature and the stability between lock core and the base.

The utility model has reasonable structural design, good stability and waterproof performance, good anti-theft effect and smaller requirement on the torque force of the key rotation; the lock core is suitable for being used as a tool type lock core and is suitable for further improving the structure of the like product.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the key before the key is inserted into the lock cylinder.

Fig. 3 is a schematic diagram of the lock core structure of the present invention.

Fig. 4 is the schematic diagram of the eccentric structure in the lock cylinder of the present invention.

Figure number and name: 1. the key comprises a key body 101, an eccentric shaft 102, an outer ring diameter 103, a limiting ring 2, a lock cylinder 201, an eccentric hole 3, an O-shaped ring 4, a spring gasket 5, a base 6, a sealing gasket 7, a nut 8, a steel bolt 9 and a screw.

Detailed Description

The structure and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-4, a lock cylinder 2 of the tool type lock cylinder is arranged in a lock cylinder hole of a base 5 through an O-ring 3 and a spring gasket 4, a square head of one end of the lock cylinder extending out of the base is connected with a square hole of a steel bolt 8 through a screw 9, and a sealing gasket 6 and a nut 7 are arranged at an external thread of the base. The concrete structure is as follows: an eccentric hole 201 is arranged in a key hole at the other end of the lock cylinder, a protruding eccentric shaft 101 is arranged at one end of the key 1, an outer ring diameter 102 larger than the diameter of the eccentric shaft is arranged on the outer diameter above the eccentric shaft, a limiting ring 103 larger than the diameter of the outer ring is arranged on the outer diameter above the outer ring of the key, the outer ring of the key is inserted into the key hole of the lock cylinder, the eccentric shaft of the key is inserted into the eccentric hole of the lock cylinder, and meanwhile, the limiting ring of the key is abutted against the key hole outer diameter hole. The other end of the key is provided with a ring, one side of the key insertion end of the inner diameter of the key ring is provided with a rectangular sign protruding inwards, and a cylindrical shaft lever is arranged between the ring of the key and the key insertion end. A sealing ring groove and a conical surface are arranged between the square head of the lock cylinder and the eccentric hole, an O-shaped ring is arranged in the sealing ring groove of the lock cylinder, and a spring gasket is arranged on the conical surface on one side of the square head.

When the lock is used, the lock cylinder is installed in the installation hole of the door plate through the nut, the eccentric shaft of the key is inserted into the eccentric hole of the lock cylinder, and the key is rotated, so that the steel bolt can be driven to rotate through the key.

In summary, the tool type lock cylinder relates to the industries of telecommunication, electric power, automatic control manufacturing and the like, and is suitable for the control equipment screen and the plane lock of the control cabinet in the industries. The tool type lock core adopts an eccentric circle structure, the lock core and a key are combined in a concave-convex mode, and the lock core structure meets the requirements of certain anti-theft performance and large-torque rotation. Meanwhile, the lock cylinder of the tool type lock cylinder is provided with the sealing ring groove and the conical surface, so that the protection grade of the lock cylinder is further enhanced, and the use hand feeling of the lock cylinder is increased. The tool type lock cylinder is formed through a die, machining is very convenient, the structure is easy to install, and in the aspect of lock application, cost is reduced.

Claims (4)

1. A lock core (2) of the tool type lock core is arranged in a lock core hole of a base (5) through an O-shaped ring (3) and a spring gasket (4), a square head of one end, extending out of the base, of the lock core is connected with a square hole of a steel bolt (8) through a screw (9), and a sealing gasket (6) and a nut (7) are arranged at an external thread of the base; the novel lock is characterized in that an eccentric hole (201) is formed in a key hole in the other end of the lock cylinder (2), a protruding eccentric shaft (101) is arranged at one end of the key (1), an outer ring diameter (102) larger than the diameter of the eccentric shaft is arranged on the outer diameter above the eccentric shaft, the outer ring diameter of the key is inserted into the key hole of the lock cylinder, and meanwhile, the eccentric shaft of the key is inserted into the eccentric hole of the lock cylinder.

2. The eccentric circle tool type lock core according to claim 1, wherein the outer diameter of the key (1) above the outer ring diameter (102) is provided with a limiting ring (103) larger than the diameter of the outer ring diameter, the outer ring diameter of the key is inserted into the key hole of the lock core (2), the eccentric shaft (101) of the key is inserted into the eccentric hole (201) of the lock core, and the limiting ring of the key abuts against the key hole outer diameter hole ring of the lock core.

3. Eccentric round tool lock cylinder according to claim 2, characterized in that the other end of the key (1) is provided with a ring, that the key insertion end side of the inner diameter of the key ring is provided with an inwardly protruding rectangular tag, and that between the ring of the key and the insertion end of the key is a cylindrical spindle.

4. The eccentric circle tool type lock cylinder according to claim 1, wherein a seal groove and a tapered surface are provided between the square head of the lock cylinder (2) and the eccentric hole (201), the O-ring (3) is provided in the seal groove of the lock cylinder, and the spring washer (4) is provided in the tapered surface on the side of the square head.

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